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i have a 3 way valve after pump, one inlet, one pipe to heating, one to hot water(it says it on the top). I do not know what kind of system this makes it. there is a slider on the side of the box, i have put it to each end and in the middle still no hot water.

thanks for the tips, the pup appears to be working and I have located what i believe are the inlet and outlet for the central heating which I believe runs through the coil, I have bled both these valves but still no hot water.

Good afternoon, I have a Gloworm spacesaver 50(it will be 30 Years old next month), I appreciate that this is an old boiler but it does work, I am not sure why but I get my heating on and it works fine but I get no hot water at all. The inlet pipe to the storage cylinder gets hot but the actual...